there是什么意思here

　　There were six or seven of us there.

　　我們約有六、七個人在場。

　　There were thousands of people there.

　　那里有成千上萬的人。

　　You don't belong here.

　　你不屬于這里。

　　I've been here before.

　　我以前來過這兒。